i tried to install your:
SJ_Lifemag_sj_lifemag_quickstart_j3x_v3.9.19
including the sample files. but at the end an error message:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '
Notice: Trying to get property 'field_count' of non-object in ' at line 1

i tried it several times, different php versions. same result. any ideas?

Hello,

Please you go here www.smartaddons.com/support/tickets submit a ticket.

Thanks